Amazing Marble Machine Pattern Pack - PRINTED

This incredible 30"-tall marble tower will delight and astonish your family and friends. Detailed step-by-step instructions and patterns will help you build ramps, chutes, a spiral staircase, and a dumping bucket using just a few standard tools and materials. The finished machine runs for nearly six minutes as oversized marbles clatter and swoop down the tower.

Pages	32
Publish Date	2012-10-01
Size	8.5" x 11.0" x 0.0"
Author	Richard Browne
Product Form	Paperback / softback